http://www.nga.gov/kids/kids.htm - Great interactive projects kids can do online from the National Gallery of Art in Washington, DC.
The Art Zone is the National Gallery of Art’s kids outreach efforts, and WOW, what a resource! This collection of Shockwave and Flash-powered applets will challenge, amuse, entertain and engage young artists (and the curious!) for hours. From a do-it-yourself Still Life creator to Brushter (MS Paint? Pshaw!) to JUNGLE (who needs KidPix?) to my favorites, Collage Machine and Collage Machine II, these tools belong in every teacher’s bookmarks collection for their ease of use, ability to inspire, and opportunities for learning!
This is the main site: http://www.nga.gov/education/index.shtm